.main {
    position: relative;
    top: 36%;
    height: 22%;
    display: flex;
    -ms-flex-pack: center;
    justify-content: space-evenly;
    -ms-flex-align: center;
    align-items: center;
    -ms-flex-direction: column;
    flex-direction: column;
    >span {
        font-size:66px;
        font-family:SourceHanSansSC;
        font-weight:800;
        color:rgba(18,18,18,1);
    }
    form {
        width: 86%;
    }
    >div {
        width: 60%;
        display: flex;
        justify-content: space-around;
        align-items: center;
    }
}